The alfalfa quality control and total extraction process
|School||Shenyang Pharmaceutical University|
|Course||Natural Medicinal Chemistry|
|Keywords||Alfalfa Quality Control Of examination Mai Situo alcohol Total flavonoids Extraction Process|
Alfalfa species of legume alfalfa alfalfa (Medicago sativa L.) dry grass. Perennial herb , also known as purple clover , animal husbandry, alfalfa , scenery grass is one of the world cultivation is the most widely used and most important , the most resource-rich legume forage cultivated in most parts of China . About the the herbs alfalfa quality standards , currently , only alfalfa seed People's Republic of ministerial drug standards were contained , and the other parts of the quality control little research . The pharmacognosy start a more systematic study of the aerial parts of alfalfa traits , microscopy , physics and chemistry , TLC and other identification test Mai Situo alcohol content determination and extraction process of total flavonoids . The main contents are as follows : 1 . Control the quality of traditional Chinese medicine , medicinal research progress of alfalfa and total flavonoids extraction process were reviewed . System alfalfa aerial parts of crude drug identification characteristics , including the original plant morphology , medicinal properties , microstructure , physical, chemical and TLC identification . Established alfalfa aerial parts of different origin Kao Mai Situo alcohol content measurement method to provide a scientific basis for the establishment of its quality standards . 4 of the extraction process of total flavonoids of alfalfa . Extracted two times with 50% ethanol , each time 2h, the filtrates were combined , and concentrated by suction , the precipitate was adjusted to pH of the filtrate was added concentrated HC1 to 3, placed 12h, filtered and the precipitate dried ie , the content of up to about 25% .